First of all, I would like to thank JSR for his information and inspiration of his pen gun, well here it is:D 6mm aluminum chamber2mm brass barrelmachined aluminum pistonshrader valve fill/pilotpressure 50-400psioring bumper[youtube]http://www.youtube.com/watch?v=M_Hhpxyy_eQ[/youtube]

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Last edited by elitesniper on Wed Jul 16, 2008 7:43 pm, edited 1 time in total.